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PETROLEUM SYSTEM (Oil And Gas) AC8572C5-66B0-4458-9799-C95A7BD2B10A -…
PETROLEUM SYSTEM (Oil And Gas)
ACCUMULATION
Gathering of hydrocarbon in reservoir rock.
Must a Cap (Seal) Rock
(prevent hydrocarbon from escaping)
A volume of hydrocarbon migrating
Found trap in reservoir rock.
MIGRATION
:<3:
Control through Porous & Permeable rocks
Migrate - source rock to reservoir rock
The movement hydrocarbon
Driving force (pressure)
Processes of Migration :<3:
Secondary
Movement within the reservoir entrapment
migrate faster and can proceed long distance
Carrier Bed - Trap
Tertiary
Trap - 1) Fresh Trap 2) Seepage
Migration to surface
Movement of oil and gas
Primary
Short Distance
Migrate out from source rock
Expulsion is upwards ( Fluid Pressure Gradient )
